Using "Bluetooth Setup Wizard"
If there is no “Bluetooth Serial Port” icon in the "My Bluetooth Places\My Device" folder ,
right-click on Bluetooth tray icon (“My Bluetooth Places”) or on your Desktop and select “Bluetooth Setup Wizard”.
Notice: You can do the same from “My Bluetooth Places” if select “Bluetooth Tasks”-> “Bluetooth Setup Wizard”.

Select the third option from the list then click Next.

If there is no "Bluetooth Serial Port " item in the list of service names, please, see Using "Bluetooth Advanced Configuration" page.
To enable Bluetooth Serial Port configuration set the checkbox on.
Properties Menu window will be launched.
Select COM port for Bluetooth from the drop-down list, then configure other items if you need and click Finish.
My Bluetooth Places -> View My Bluetooth Services .
A “Bluetooth Serial Port” icon has to show up in the window:

To configure COM port, see Using “My Bluetooth Places".